<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>登录页面</title>
</head>

<body>
  <form action="http://127.0.0.1:9000/login" method="post">
    用户名<input type="text" name="username" placeholder="请输入用户名"><br />
    密码<input type="password" name="password" placeholder="请输入密码"><br />
    <input type="submit" value="登录">
  </form>
</body>

</html>